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All results from a given calculation for C5H10 (Cyclopentane)

using model chemistry: wB97X-D/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at wB97X-D/3-21G*
 hartrees
Energy at 0K-195.441751
Energy at 298.15K 
HF Energy-195.441751
Nuclear repulsion energy186.667234
The energy at 298.15K was derived from the energy at 0K and an integrated heat capacity that used the calculated vibrational frequencies.
Vibrational Frequencies calculated at wB97X-D/3-21G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A 3179 3013 65.78      
2 A 3163 2998 16.53      
3 A 3161 2996 6.98      
4 A 3152 2988 12.60      
5 A 3145 2981 19.59      
6 A 3118 2956 34.37      
7 A 3103 2941 21.53      
8 A 3098 2937 20.52      
9 A 3097 2935 21.10      
10 A 3095 2934 21.04      
11 A 1578 1496 0.32      
12 A 1555 1473 10.02      
13 A 1552 1471 9.68      
14 A 1550 1469 8.23      
15 A 1541 1461 0.12      
16 A 1386 1314 1.84      
17 A 1386 1313 2.72      
18 A 1378 1306 0.37      
19 A 1366 1295 1.99      
20 A 1364 1293 1.22      
21 A 1327 1258 2.02      
22 A 1285 1218 0.12      
23 A 1261 1195 0.69      
24 A 1246 1181 0.32      
25 A 1204 1141 0.01      
26 A 1068 1012 0.07      
27 A 1064 1008 0.07      
28 A 1044 989 1.26      
29 A 1012 959 2.02      
30 A 918 870 3.31      
31 A 910 862 3.73      
32 A 890 843 0.92      
33 A 888 842 1.40      
34 A 844 800 0.33      
35 A 785 744 2.25      
36 A 637 604 0.21      
37 A 565 536 2.45      
38 A 268 254 0.00      
39 A 65i 62i 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 31558.9 cm-1
Scaled (by 0.9478) Zero Point Vibrational Energy (zpe) 29911.5 cm-1
See section III.C.1 List or set vibrational scaling factors to change the scale factors used here.
See section III.C.2 Calculate a vibrational scaling factor for a given set of molecules to determine the least squares best scaling factor.
Rotational Constants (cm-1) from geometry optimized at wB97X-D/3-21G*
ABC
0.21457 0.21439 0.12415

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/3-21G*

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.086 -0.642 0.262
C2 -0.475 1.207 0.130
C3 -1.308 -0.112 0.015
C4 -0.267 -1.262 -0.159
C5 0.973 0.809 -0.248
H6 -0.492 1.570 1.163
H7 -0.867 2.000 -0.512
H8 -1.992 -0.074 -0.837
H9 -1.909 -0.265 0.917
H10 -0.213 -1.560 -1.212
H11 -0.524 -2.147 0.430
H12 1.943 -1.178 -0.156
H13 1.176 -0.642 1.356
H14 1.096 0.822 -1.339
H15 1.720 1.477 0.191

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12 H13 H14 H15
C12.42302.46391.54631.54232.86303.37583.31733.08832.16892.21011.09401.09732.16982.2130
C22.42301.56362.49411.54861.09571.09372.20882.20023.08583.36743.40792.76532.18412.2120
C32.46391.56361.56092.47372.19372.22121.09401.09422.19112.22003.42552.87212.91213.4235
C41.54632.49411.56092.41523.13383.33582.20152.20151.09611.09372.21172.18212.75533.4015
C51.54231.54862.47372.41522.17282.20813.14953.28872.81883.38212.21252.17251.09721.0940
H62.86301.09572.19373.13382.17281.77022.99292.33133.93933.78913.90162.77773.05632.4183
H73.37581.09372.22123.33582.20811.77022.38262.87383.68654.26694.25723.82722.43352.7312
H83.31732.20881.09402.20153.14952.99292.38261.76622.34732.83844.14353.89503.25404.1523
H93.08832.20021.09422.20153.28872.33132.87381.76623.01392.38684.10143.13913.91074.0899
H102.16893.08582.19111.09612.81883.93933.68652.34733.01391.77172.43183.06102.72063.8634
H112.21013.36742.22001.09373.38213.78914.26692.83842.38681.77172.71492.45233.81674.2691
H121.09403.40793.42552.21172.21253.90164.25724.14354.10142.43182.71491.77752.47342.6863
H131.09732.76532.87212.18212.17252.77773.82723.89503.13913.06102.45231.77753.06782.4784
H142.16982.18412.91212.75531.09723.05632.43353.25403.91072.72063.81672.47343.06781.7769
H152.21302.21203.42353.40151.09402.41832.73124.15234.08993.86344.26912.68632.47841.7769

picture of Cyclopentane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C4 C3 104.924 C1 C4 H10 109.147
C1 C4 H11 112.547 C1 C5 C2 103.244
C1 C5 H14 109.425 C1 C5 H15 113.066
C2 C3 C4 105.920 C2 C3 H8 111.202
C2 C3 H9 110.504 C2 C5 H14 110.111
C2 C5 H15 112.529 C3 C2 C5 105.274
C3 C2 H6 109.903 C3 C2 H7 112.201
C3 C4 H10 109.868 C3 C4 H11 112.295
C4 C1 C5 102.884 C4 C1 H12 112.667
C4 C1 H13 110.107 C4 C3 H8 110.810
C4 C3 H9 110.800 C5 C1 H12 113.027
C5 C1 H13 109.633 C5 C2 H6 109.308
C5 C2 H7 112.225 H6 C2 H7 107.900
H8 C3 H9 107.642 H10 C4 H11 108.011
H12 C1 H13 108.426 H14 C5 H15 108.377
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.418      
2 C -0.418      
3 C -0.418      
4 C -0.418      
5 C -0.418      
6 H 0.211      
7 H 0.209      
8 H 0.211      
9 H 0.211      
10 H 0.210      
11 H 0.208      
12 H 0.207      
13 H 0.207      
14 H 0.208      
15 H 0.207      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.001 0.001 0.001 0.002
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -33.279 0.005 0.003
y 0.005 -33.256 -0.012
z 0.003 -0.012 -32.292
Traceless
 xyz
x -0.505 0.005 0.003
y 0.005 -0.470 -0.012
z 0.003 -0.012 0.976
Polar
3z2-r21.951
x2-y2-0.023
xy0.005
xz0.003
yz-0.012


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.210 0.005 -0.001
y 0.005 7.213 0.008
z -0.001 0.008 6.676


<r2> (average value of r2) Å2
<r2> 116.085
(<r2>)1/2 10.774